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Necquiz 103

 

1. Electrical systems that are grounded shall be connected to earth in manner that will ______.

a) limit voltages due to lightning, line surges or unintentional contact with higher voltage lines

b) stabilize the voltage-to-ground during normal operation

c) facilitate overcurrent protection device operation in case of ground faults

d) a and b

250.4 (A) (1)

2. Electrically heated smoothing irons shall be equipped with an identified _____ means.

a) disconnecting

b) temperature-limiting

c) current limiting

d) none of these

422.46

3. Embedded deicing and snow-melting equipment cables, units, and panels shall not be installed where they bridge ______, unless provisions are made for expansion and contraction.

a) roads

b) over water spans

c) runways

d) expansion joints

426.20(E)

4. ENT must be secured in place every ______.

a) 12 in.

b) 18 in.

c) 24 in.

d) 36 in.

362.30

5. Equipment in an area containing acetylene gas must be rated for a Class 1, Group A location.

a) true

b) false

500.6(A)(1)

6. Equipment intended to break current at other than fault levels shall have an interrupting rating at system voltage sufficient for the current that must be interrupted.

a) true

b) false

110.9

7. Exposed conductive parts of luminaries shall be ______.

a) grounded

b) painted

c) bonded

d) a and b

410.18(A)

8. Exposed runs of AC cable shall closely follow the surface of the building finish or of running boards. Exposed runs shall also be permitted to be installed on the underside of joists where supported at each joist and located so as not to be subject to physical damage.

a) true

b) false

320.15

9. External surfaces of pipeline and vessel heating equipment that operate at temperatures exceeding _____ shall be physically guarded, isolated or thermally insulated to protect against contact by personnel in the area.

a) 110 F

b) 120 F

c) 130 F

d) 140 F

427.12

10. Feeders to floating buildings can be installed in ______ with approved fittings where flexible connections are required for services.

a) rigid nonmetallic conduit

b) liquid tight metallic conduit

c) liquid tight nonmetallic conduit

d) portable power cables

553.7(B)

11. Fire alarm systems include ______.

a) fire detection and alarm notification

b) guards tour

c) sprinkler water flow

d) all of these

760.1, FPN No. 1

12. Fittings and connectors shall be used only with the specific wiring methods for which they are designed and listed.

a) true

b) false

300.15

13. Fixed electric space-heating equipment requiring supply conductors with insulation rated over ______ shall be clearly and permanently marked.

a) 75 C

b) 60 C

c) 90 C

d) all of these

424.11

14. Fixture wires shall be permitted for connecting luminaries to the ______ conductors supplying the luminaries.

a) service

b) branch-circuit

c) supply

d) none of these

402.10

15. Fixture wires used for luminaries shall not be smaller than ______.

a) 22 AWG

b) 18 AWG

c) 16 AWG

d) 14 AWG

410.27 (B) see 402.6

16. Flat cable assemblies are suitable to supply tap devices for ______ loads. The rating of the branch circuit shall not exceed 30A.

a) lighting

b) small appliances

c) small power

d) all of these

322.10

17. Flat cable assemblies shall have conductors of ______ special stranded copper wires.

a) 14 AWG

b) 12 AWG

c) 10 AWG

d) all of these

322.104

18. Flat conductor cable cannot be installed in _______.

a) residential units

b) schools

c) hospitals

d) any of these

324.12

19. Flexible cords and cables shall be connected to devices and to fittings so that tension will not be transmitted to joints or terminal screws. This shall be accomplished by ____.

a) knotting the cord

b) winding with tape

c) use of fittings designed for the purpose

d) all of these

400.10 FPN

20. Flexible cords and cables used for temporary wiring shall be protected ____.

a) from accidental damage

b) where passing

c) from sharp corners and projections

d) all of these

527.4 (H)

21. Flexible cords shall not be used as a substitute for ______ wiring.

a) temporary

b) fixed

c) overhead

d) none of these

400.8(1)

22. FMC can be installed exposed or concealed where not subject to physical damage.

a) True

b) False

348.12 (7)

23. FMC cannot be installed _______.

a) underground

b) embedded in poured concrete

c) where subject to physical damage

d) all of these

348.12 (6) and (7)

24. FMC shall be secured ________.

a) at intervals not exceeding 4 ft

b) within 12 in. on each side of a box where fished

c) where fished

d) at intervals not exceeding 3 ft at motor terminals

348.30

25. For cellular concrete floor raceways, junction boxes shall be ____ the floor grade and sealed against the free entrance of water or concrete.

a) leveled to

b) above

c) below

d) perpendicular to

373.7

26. For installations consisting of not more than two 2-wire branch circuits, the building disconnecting means shall have a rating of not less than_______.

a) 15A

b) 20A

c) 25A

d) 30A

225.39(B)

27. For installations consisting of not more than two 2-2ire branch circuits, the service disconnecting means shall have a rating of not less than _______.

a) 15A

b) 20A

c) 25A

d) 30A

230.79(B)

28. For installations of resistors and reactors, a thermal barrier shall be required if the space between them and any combustible material is less than ______

a) 2 in.

b) 3 in.

c) 6 in.

d) 12 in.

470.3

29. For straight pulls, the length of a pull box shall not be less than ____ times the outside diameter, over sheath of the largest conductor or cable entering the box on systems over 600V.

a) 18

b) 16

c) 36

d) 48

314.71(A)

30. Fuse holders for cartridge fuses shall be so designed that is difficult to put a fuse of any given class into a fuse holder that is designed for a lower_____ or a higher ____ than that of the class to which the fuse belongs.

a) voltage wattage

b) wattage, voltage

c) voltage, current

d) current, voltage

240.60(B)

31. General-use branch circuits using flat conductor cable shall not exceed _____.

a) 15A

b) 20A

c) 30A

d) 40A

324.10 (B)(2)

32. Ground-fault circuit-interrupter (GFCI) protection in a mobile home is required for ________.

a) receptacle outlets installed outdoors

b) receptacles within 6 ft. of a wet bar sink

c) all receptacles in bathrooms including receptacles in luminaires (light fixtures)

d) all of these

550.13(B)

33. Ground-fault protection at service equipment may make it necessary to review the overall wiring system for proper selective overcurrent protection ______.

a) rating

b) coordination

c) devices

d) none of these

230.95(C) FPN No. 2

34. Ground-fault protection for personnel is required for receptacles rated more than 30A or other than 125V. The ground-fault protection shall be supplied by _______.

a) GFCI protection device

b) Assured Equipment Ground Conductor Program

c) AFCI protection device

d) a or b

527.6(B)

35. Ground-fault protection of equipment shall be provided for solidly grounded wye electrical services of more than 150 volts-to-ground, but not exceeding 600V phase-to-phase for each service disconnecting means rated _______ or more.

a) 1,000A

b) 1,500A

c) 2,000A

d) 2,500A

230.95

36. Ground-fault protection of equipment shall be provided in accordance with the provisions of 230.95 for solidly-grounded wye electrical systems of more than 150 volts-to-ground, but not exceeding 600V phase-to-phase for each individual device used as a building or structure main disconnecting means rated ____, or more.

a) 1,000A

b) 1,500A

c) 2,000A

d) 2,500A

240.13

37. Grounding and bonding conductors shall not be connected by ____.

a) pressure connections

b) solder

c) lugs

d) approved clamps

250.8

38. Grounding-type attachment plugs shall be used only with a cord having a(n)____ conductor.

a) equipment grounding

b) isolated

c) computer circuit

d) insulated

406.9(E)

39. Hallways in dwelling units that are ____long or longer require a receptacle outlet.

a) 12 ft .

b) 10 ft .

c) 8 ft.

d) 15 ft.

210.52(H)

40. Hazardous locations are classified based on the properties of the ________ that

a flammable or combustible concentration or quantity is present.

a) flammable vapors

b) flammable gases or liquids

c) combustible dusts or fibers

d) all of these

500.5(A)

41. Horizontal runs of RMC supported by openings through _____at intervals not exceeding 10 ft and securely fastened within 3 ft of termination points shall be permitted.

a) walls

b) trusses

c) rafters

d) framing members

344.30(B)(4)

42. HPD cord is permitted for _______usage.

a) not hard

b) hard

c) extra hard

d) all of these

400.4 Table

43. If a dwelling unit is served by 1 3-wire, 120/240V service-entrance or feeder conductors with an ampacity of ______ or greater, it shall be permissible to compute the feeder and service loads in accordance with 220.30 instead of the method specified in Part II of Article 220.

a) 100

b) 125

c) 150

d) 175

220.30(A)

44. IMC can be installed in or under cinder fill that is subjected to permanent moisture _______.

a) where the conduit is not less than 18 in. under the fill

b) when protected on all sides by 2 in. of concrete

c) where protected by corrosion protection judged suitable

d) any of these

342.10(C)

45. IMC shall be firmly fastened within _____ of each outlet box, junction box, device box, fitting, cabinet or other conduit termination.

a) 12 in.

b) 18 in.

c) 2 ft.

d) 3 ft.

342.30(A)

46. In a commercial garage over a class 1 location, equipment less than ____ above the floor level that may produce arcs, sparks or particles of hot metal, shall be of the totally enclosed type or constructed so as to prevent the escape of sparks or hot metal particles.

a) 6 ft.

b) 10 ft.

c) 12ft.

d) 18 ft.

511.7(B)(1) (a)

47. In a concealed FMC installation, ________connectors shall not be used.

a) straight

b) angle

c) grounding type

d) none of these

348.42

48. In cellular concrete floor raceways, a cell is defined as a single, enclosed______ space in a floor made of pre-cast cellular concrete slabs, the direction of the cell being parallel to the direction of the floor member.

a) circular

b) oval

c) tubular

d) hexagonal

372.2

49. In Class _______ locations for Groups A, B, C, and D, the classification involves determinations of maximum explosion pressure, maximum safe clearance between parts of a clamped joint in an enclosure and the minimum ignition temperature of the atmospheric mixture.

a) I

b) II

c) III

d) all of these

500.6(A), FPN No. 2

50. In communication circuits, all separate electrodes can be bonded together using a minimum jumper size of _______ copper.

a) 10 AWG

b) 8 AWG

c) 6 AWG

d) 4 AWG

800.40(D)

51. In electrical nonmetallic tubing, the maximum number of bends between pull points cannot exceed ______degrees including any offsets.

a) 320

b) 270

c) 360

d) unlimited

362.26

52. In general, the minimum size phase, neutral or grounded conductor permitted for use in parallel installations is _________.

a) 10 AWG

b) 1 AWG

c) 1/0 AWG

d) 4 AWG

310.4

53. In network-powered broadband communications systems, all separate electrodes can be bonded together using a minimum size jumper of ______copper.

a) 10 AWG

b) 8 AWG

c) 6 AWG

d) 4 AWG

830.40(D)

54. In order to _____ NUCC the conduit shall be trimmed away from the conductors or cables using an approved method that will not damage the conductor or cable insulation or jacket.

a) facilitate installing

b) enhance the appearance of the installation of

c) terminate

d) provide safety to the persons installing

354.28

55. In reference to mobile/manufactured homes, examples of portable appliances could be ____, but only if the appliances are not built-in.

a) refrigerators

b) range equipment

c) clothes washers

d) all of these

550.2-Appliance, Portable and FPN

56. In walls constructed of wood or other _____ material electrical cabinets shall be flush with the finished surface or project there from.

a) nonconductive

b) porous

c) fibrous

d) combustible

312.3

57. Junction boxes for pool lighting shall not be located less than ______from the inside wall of a pool unless separated by a fence or wall.

a) 3 ft.

b) 4 ft.

c) 6 ft.

d) 8 ft.

680.24(A)(2)(b)

58. Lettering on conductor insulation indicates intended condition of use. THWN is rated ______.

a) 75C

b) for wet locations

c) a and b

d) not enough information

310.13

59. Lighting track is a manufactured assembly and its length may not be altered by the addition or subtraction of sections of track.

a) True

b) False

410.100

60. Lighting track is a manufactured assembly designed to support and ____ luminaries that are capable of being readily repositioned on the track.

a) connect

b) protect

c) energize

d) all of these

410.100

61. Listed boxes designed for underground installation can be directly buried when covered by________.

a) concrete

b) gravel

c) non-cohesive granulated soil

d) b and c

314.29 Ex.

62. Luminaires designed for end-to-end connection to form a continuous assembly, or luminaries connected together by recognized wiring methods, shall be permitted to contain the conductors of a 2-wire branch circuit or one______ branch circuit, supplying the connected luminaries and need not be listed as a raceway.

a) small appliance

b) appliance

c) multiwire

d) industrial

410.32

63. Luminaires shall be supported independently of the outlet box where the weight exceeds __________.

a) 60 lbs.

b) 50 lbs.

c) 40 lbs.

d) 30lbs.

314.27 (B)

64. Luminaires shall be wired so that the _______ of lampholders will be connected to the same fixture or circuit conductor or terminal.

a) conductor

b) neutral

c) base

d) screw-shells

410.23

65. Luminaires shall be wired with conductors having insulation suitable for the environmental conditions and _____to which the conductors will be subjected.

a) temperature

b) voltage

c) current

d) all of these

410.24

66. Luminaires, lamp holders and receptacles shall have no live parts normally exposed to contact, but cleat-type lampholders and receptacles located at least _______above the floor shall be permitted to have exposed contacts.

a) 3

b) 6

c) 8

d) none of these

410.3 Ex.

67. MC cable shall be supported and secured at intervals not exceeding ______.

a) 3 ft.

b) 6 ft.

c) 4 ft.

d) 2 ft.

330.30

68. Means shall be provided to disconnect simultaneously all _____1 supply conductors to the phase converter.

a) ungrounded

b) grounded

c) grounding

d) all of these

455.8

69. Metal conduit and metal piping within _______ of the inside walls of the pool that are not separated from the pool by a permanent barrier are required to be bonded.

a) 4 ft.

b) 5 ft.

c) 8 ft.

d) 10 ft.

680.26(B)(5)

70. Metal poles that support luminaries must meet the following requirements:_____.

a) They must have an accessible handhole (sized 2 X 4 in.) with a raintight cover

b) An accessible grounding terminal must be installed accessible from the hand-hole.

c) a and b

d) none of these

410.15(B)(1) and (3)

71. Metal wire ways are sheet metal troughs with_________that are used to form a raceway system.

a) removable covers

b) hinged covers

c) a or b

d) solid copper or aluminum

376.2

72. MI cable conductors shall be made of ______with a resistance corresponding to standard AWG and kcmil sizes.

a) solid copper

b) solid or stranded copper

c) stranded copper

d) solid copper or aluminum

332.104

73. Motor control circuits shall be arranged so that they will be disconnected from all sources of supply when the disconnecting means is in the open position. Where separate devices are used for the motor and control circuit, they shall be located immediately adjacent to each other.

a)True

b)False

430.74(A)

74. Motor controllers and terminals of control circuit devices are required to be connected to copper conductors unless identified as approved for use with a different type of conductor.

a) True

b) False

430.9(B)

75. Motors shall be located so that adequate _____ is provided and so that maintenance, such as lubrication of bearings and replacing of brushes, can be readily accomplished.

a) space

b) ventilation

c) protection

d) all of these

430.14(A)

76. Network-powered broadband communications system cables shall be separated at least 2 in. from conductors of ____ circuits.

a) power

b) electric light

c) Class 1

d) any of these

830.58(A)(2)

77. NM cable shall be secured in place within _____ of every cabinet, box or fitting.

a) 6 inc.

b) 10 in.

c) 12 in.

d) 18 in.

334.30

78. NM cables run horizontally through framing are considered supported and secured where such support does not exceed 4 ft intervals and the NM cable is securely fastened in place by an approved means within 12 in. of each box, cabinet, conduit body or other NM cable termination.

a) True

b) False

334.30

79. No ______ splices or taps shall be made within or on a luminaire (fixture).

a) unapproved

b) untested

c) uninspected

d) unnecessary

410.28(D)

80. No seal is required if a conduit (with no unions, couplings, boxes or fittings) passes through a Class 1, Division 2 location if the termination points of the unbroken conduit are in at least _____ within the unclassified location.

a) 6 in.

b) 12 in.

c) 18 in.

d) 24 in.

501.5(B)(2), Ex. 1

81. Noninsulated busbars shall have a minimum space of _____ between the bottom of enclosure and busbar.

a) 6 in.

b) 8 in.

c) 10 in.

d) 12 in.

408.10 Table

82. Nonmetallic extensions shall be secured in place by approved means at intervals not exceeding_______.

a) 6 in.

b) 8 in.

c) 10 in.

d) 16 in.

382.30

83. NUCC larger than _______shall not be used.

a) 1 in.

b) 2 in.

c) 3 in.

d) 4 in.

354.20(B)

84. NUCC shall be capable of being supplied on reels without damage or _______ and shall be of sufficient strength to withstand abuse, such as impact or crushing in handling and during installation, without damage to conduit or conductors.

a) distortion

b) breakage

c) shattering

d) all of these

354.100(B)

85. On a 4-wire, 3 wye circuit, where the major portion of the load consists of electrical discharge lighting, data-processing equipment or other harmonic current inducting loads, the grounded conductor shall be counted when applying 310.15(B)(2) adjustment factors.

a) True

b) False

310.15(B)(4)(c)

86. One conductor of flexible cords intended to be used as a(n)_______ circuit conductor shall have a continuous marker readily distinguishing it from the other conductor or conductors.

a) grounded

b) equipment

c) ungrounded

d) all of these

400.22

87. One wiring method that is permitted in ducts or plenums used for environmental air is_______.

a)flexible metal conduit of any length

b)electrical metallic tubing.

c)armored cable (BX)

d)nonmetallic-sheathed cable

300.22(B)

88. One-inch IMC must be supported every _____.

a) 8 ft.

b) 10 ft.

c) 12 ft.

d) 14 ft.

342.30(B)(1)

89. One-inch RNC must be supported every_______.

a) 2 ft.

b) 3 ft.

c) 4 ft.

d) 6 ft.

352.30(B) Table

90. Open conductors entering or leaving locations subject to dampness, wetness or corrosive vapors shall have______formed on them and shall then pass upward and inward from the outside of the buildings, or from the damp, wet or corrosive location, through noncombustible, nonabsorbent insulating tubes.

a) weather heads

b) drip loops

c) identification

d) blisters

398.15

91. Openings in ventilated dry-type_____ or similar openings in other equipment over 600V shall be designed so that foreign objects inserted through these openings will be deflected from energized parts.

a) lampholders

b) motors

c) fuseholders

d) transformers

110.31(B)(1)

92. Overcurrent protection devices are not permitted to be located_____.

a) where exposed to physical damage

b) near easily ignitable materials, such as in clothes closets

c) in bathrooms of dwelling units

d) all of these

240.24(C),(D),and (E)

93. Overhead conductors installed over roofs shall have a vertical clearance of _____above the roof surface.

a) 8 ft

b) 12 ft.

c) 15 ft.

d) 3 ft.

225.19(A)

94. Overhead utility service conductors that operate at not over 600V must maintain a ______clearance in any direction to the water level, edge of water surface, base of diving platform or permanently anchored raft.

a) 14 ft.

b) 16 ft.

c) 20 ft.

d) 22 ft.

680.8 Table

95. Overhead-service conductors from the last pole or other aerial support to and including the splices, if any, are called ______ conductors.

a) service-entrance

b) service-drop

c) service

d) overhead service

100

96. Parking garages used for parking or storage and where no repair work is done except for exchange of parts and routine maintenance requiring no use of electrical equipment, open flame, welding or the use of volatile flammable liquids, are not classified as hazardous locations.

a) True

b) False

511.3(A)

97. Plug fuses of 15A or less shall be identified by a(n) ______configuration of the window, cap or other prominent part to distinguish them from fuses of higher ampere ratings.

a) octagonal

b) rectangular

c) hexagonal

d) triangular

240.50(C)

98. Plug fuses of the Edison-base type have a maximum rating of ______.

a) 20A

b) 30A

c) 40A d)50A

240.51(A)

99. Portable lamps shall be wired with____recognized by 400.4 and have an attachment plug of the polarized or grounding type.

a) flexible cable

b) flexible cord

c) nonmetallic flexible cable

d) nonmetallic flexible cord

410.42(A)

100. Power-limited fire alarm cables installed as wiring within buildings shall be_____as being resistant to the spread of fire.

a) labeled

b) listed

c) identified

d) marked

760.71

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